EP0079008B1 - Feeding device for single or multiple sheets - Google Patents

Feeding device for single or multiple sheets Download PDF

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Publication number
EP0079008B1
EP0079008B1 EP82110005A EP82110005A EP0079008B1 EP 0079008 B1 EP0079008 B1 EP 0079008B1 EP 82110005 A EP82110005 A EP 82110005A EP 82110005 A EP82110005 A EP 82110005A EP 0079008 B1 EP0079008 B1 EP 0079008B1
Authority
EP
European Patent Office
Prior art keywords
rollers
pressing
drive
pivotal
pressing rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82110005A
Other languages
German (de)
French (fr)
Other versions
EP0079008A2 (en
EP0079008A3 (en
Inventor
Werner Mädge
Josef Hauger
Paul Ensslen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Digital Kienzle Computersysteme GmbH and Co KG
Original Assignee
Mannesmann Kienzle GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann Kienzle GmbH filed Critical Mannesmann Kienzle GmbH
Priority to AT82110005T priority Critical patent/ATE40664T1/en
Publication of EP0079008A2 publication Critical patent/EP0079008A2/en
Publication of EP0079008A3 publication Critical patent/EP0079008A3/en
Application granted granted Critical
Publication of EP0079008B1 publication Critical patent/EP0079008B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/26—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02—Rollers
    • B41J13/03—Rollers driven, e.g. feed rollers separate from platen

Definitions

  • the invention relates to a device for transporting individual forms and sets of forms from an insertion shaft to a printing pad and back into the insertion shaft, with drive means for the individual forms in front of and behind the printing pad, with pressing means pivotable in and out of the working position, with which the individual forms are pressed against drive means and with alignment means for the individual forms before they are drawn in, the front and rear drive and pressing means, which are designed as a clamping device, being arranged relative to the printing pad in such a way that the individual forms are not deflected between them, and in addition both the alignment means and the front and rear drives and pressing means can be moved in and out of the working position in a controlled time dependency, such that the front pressing means can be pivoted into the working position before the alignment means can be moved out of the working position are, wherein the front pressure means remain in the working position at least in time until the single form between the rear drive and pressure means.
  • a wide variety of transport devices are known for printing individual forms or sets of forms, which advance the form relative to a printing point, transport it further during printing and, after printing, push it out again in the reverse direction.
  • the forms are driven both in front of and behind the printing point by drive and pressure rollers in order to ensure that the form is in any case kept taut at the printing point.
  • the drive and pressure means act simultaneously as a clamping device for the forms.
  • alignment means are required that align the forms on two mutually perpendicular edges so that the forms are clamped in the correct position and released for feed.
  • a non-shifted print image is also an essential requirement when printing the forms on the one hand in the forward direction and on the other hand in the reverse direction. It is also not insignificant to point out that the device according to the invention should be such that it processes thinner and thicker individual forms as well as form sets with several layers equally well.
  • the device for transporting individual forms and form sets referred to at the outset is known from US-A-4 030 726. Apart from a drive belt arrangement implemented there, the forms can only be moved in one transport direction. For this purpose, the drive means are located exclusively in front of the pressure point. There is also a lack of alignment tools before the form is moved in. Practically only one stop is provided as the alignment means. It is therefore questionable whether the known attack can actually align the form. Furthermore, the pressing means can only be controlled to a limited extent.
  • a card transport device is also known from US-A-4 019 025. From this document it is known in detail to provide forms that can be transported back and forth, to effectively switch the rear pressing means and to switch the front pressing means unlikely as soon as a certain position of the form has been reached. It is also known from this to first switch the rear pressing means to be effective when the form is transported back, and to be ineffective at the earliest when the form has reached the front pressing means. Otherwise, this known solution works in accordance with the genus described at the beginning.
  • the task is to be able to print the forms in such a way that the head and foot zones are kept as small as possible.
  • the print head and the transport device acting as a clamping device for the forms must be designed in such a way that printing can take place in the immediate vicinity of the upper and lower edges without the form being displaced.
  • the drive means consisting of rear drive rollers and the pressure means consisting of pivotable rear pressure rollers and on the other hand the drive means consisting of front drive rollers and the pressure means consisting of pivotable front pressure rollers are each separately controllable as a function of time, whereby the pivotable rear pressure rollers in the operating position and the pivotable front pressure rollers can first be switched to the retraction position out of operation after the front pressure rollers are in the operating position and the single form is between the rear drive rollers and the pivotable rear pressure rollers, the pivotable rear pressure rollers can be switched on for the return of the single form and when the pivotable front pressure rollers are reached through the single form, the pivotable front pressure rollers can be switched on and that when the single form is extended from the swiveling front pressure rollers, the alignment means can be swiveled back into the operating position.
  • the front and rear drive rollers can be driven by means of a transport motor, while both the front and rear pressure rollers and the alignment means can be controlled by means of a control motor, the transport motor and the control motor being able to be switched on and off alternately. Due to the separate drive for bringing the pressure means and the aligning means on the one hand and the transport means on the other hand, a flying change between the front and rear pressure rollers is not necessary; in any case, the transport is stopped first and then the corresponding pressure means in and out We brought what is possible without a noticeable time delay.
  • control motor by means of cam disks, which are each separately assigned to the front and rear pressure rollers and the alignment means, bring them into and out of operating position in a staggered manner.
  • cam disks which are each separately assigned to the front and rear pressure rollers and the alignment means, bring them into and out of operating position in a staggered manner.
  • cam disk which is driven by the control motor, is provided for controlling the transport motor.
  • a further improvement of the invention consists in that, in order to avoid upsetting the individual forms, the pressure rollers are switched in the sense of pulling the individual form away from the printing base.
  • This arrangement has the additional advantage that it allows the entire transport device to be constructed in a relatively flat design, which represents a significant improvement for its use as a table-top device.
  • FIGS. 2A, 2B placed side by side result in a side view of the control elements and the control motor, different line shapes being used for the different control linkages to clarify the legibility.
  • the control linkage for the front pressure rollers is shown in full lines
  • the control linkage for the rear pressure rollers with dash-dotted lines and the control for the alignment means in dashed lines.
  • FIGS. 3A, 3B and 4A, 4B which only show other functional positions.
  • a transport motor in the form of a stepping motor acts on a shaft 3 via a belt 1 and a belt wheel 2.
  • the drive movement of the transport motor is transmitted to a shaft 7 via a belt wheel 6 via a further belt wheel 4 and a belt 5.
  • the shafts 3 and 7 are thus driven by the transport motor in both directions of rotation, that is to say in the feed and ejection directions.
  • the shafts 3 and 7 are provided as drive means with rubber-coated rear drive rollers 8 and 9, which run from below the forms 11 or form sets to be transported act.
  • the drive rollers 8 and 9 penetrate through recesses 14 in lower cover plates 13, 13 '.
  • the front drive rollers 15 corresponding to the rear drive rollers 8 and 9 are fastened and the front pressure rollers 20 and 21 opposite them are provided.
  • the front drive rollers 15 are covered by the cover plate 13 and only extend beyond this cover plate with a fraction of their circumference.
  • the cover plate 13 forms, together with a guide part 17, an insertion shaft 18 through which the forms 11 or form sets can be inserted.
  • Each drive roller 8, 9 and 15 is assigned a pivotable pressure roller 19, 20, 21 which pass through the upper cover, guide and holding parts 16, 16 '.
  • the printing pad 60 can be seen between the guide parts 16, 16 'and the printing head 61 in a broken line.
  • the pressure rollers 20, 21 are the front pressure means, which are each rotatably mounted on an axis 22 and are carried in two holding arms 23 and 24.
  • the holding arms are carried by a common axis 25, the axis 25 being provided with a projection 26 which enters a cutout 28 in the holding arms, so that the holding arms 23 and 24 are pivotably mounted on the axis 25 by a small amount.
  • a spring 27 influences the holding arms and thus the pressure rollers 20 and 21 in the counterclockwise direction. However, as long as the axis 25 assumes the position shown in FIG. 2B, the pressure rollers 20, 21 remain raised. Incidentally, the holding arms 23, 24 are still supported and guided in the holding part 16.
  • a lever 30 (on the left in FIG. 1, on the right in FIG.
  • the rod 32 is articulated at 33 (FIG. 2A) to a two-armed lever 34 which is pivotably mounted on a pin 35. With a roller 36, the lever 34 senses the position of the curve 37.
  • the control 37 is driven in a counterclockwise direction via a worm and a worm wheel 39, among other things, via a worm and a worm wheel 39 as soon as the control motor is excited.
  • the cam disk 37 driven by the motor 38, controls the pressure rollers 20, 21 via the linkage 34, 32, 30 and the shaft 25 from the position according to FIGS. 2A, 2B into the 3A, 3B, in which the recording medium is clamped between the pressure rollers 20, 21 on the one hand and the drive rollers 15.
  • transport only takes place when the transport motor also drives shafts 7 and 3 step by step via belts 1 and 5.
  • FIGS. 2A and 4A show that here the pressure roller 19 has been pressed into the pressure position relative to the drive roller 9. Otherwise, the pressure rollers 19 are mounted analogously to the pressure rollers 20, 21 and are kept movable on the axis 40 by a small amount.
  • the alignment means 50 which are pivotably mounted on an axis 52 in the form of a bow-shaped part 51.
  • On the front arm of the bracket 51 there are stops 53 which can pass through recesses in the guide plates 13 and 16 in such a way that the input shaft 18 is closed, as shown in FIG. 2B.
  • the bow-shaped part 51 is under the influence of a spring 54, which acts on a pin 55 on the bracket 51.
  • a lever 56 acts on the pin 55, which is mounted at 57 and acts with its other end on a pin 58 on a lever 59.
  • the lever 59 is pivotable about the point 62 and scans a further small cam 64 with a roller 63, which is also fastened on the control shaft 44. With an extended arm 59 ', the lever 59 still acts on a microswitch 65.
  • a comparison between the position according to FIGS. 2A and B and 3A, 3B shows that the alignment means 50 are in the operative position for the form 11 before the start of the drawing-in process, but are pivoted by the curve 64 and then their ineffective position according to FIG. 3B take in.
  • a pivotable switching arm 67 which is actuated by the form 11 when it is inserted.
  • Another switching arm 68 (FIG. 1) is arranged such that it is pivoted through the left side edge of the form 11 when the form 11 is correctly inserted. If both switching arms 67 and 68 are actuated together, the pull-in process is released by this AND function.
  • the front drive means 15 and pressure means 20, 21, the printing pad 60 and the rear drive means 8, 9 and pressure means 19 lie in one plane. It follows from this that there is no deflection of the forms between the points of contact between 20, 21 and 15, the printing pad 60 and the points of contact between 19 and 8, 9. Furthermore, the arrangement of all of these points in one plane means that a relatively flat construction of the entire arrangement is possible, which also enables such a form transport device to be set up on a table, because the insertion and ejection of the form is only a little above the table top can take place, so that this also results in a user-friendly arrangement.
  • the control motor 38 continues to run and the cam disk 64 pivots the alignment means 50 from the position according to FIG. 2B into the position according to FIG. 3B via the parts 63, 59, 56 and 51. This clears the way for the entry of forms 11.
  • the lever 59 has actuated the microswitch 65 and has thus reported that the pulling-in process can begin because the alignment means 50 have been pivoted away.
  • the transport motor is switched on and the control motor 38 is switched off via a further cam plate 45, a lever 46 and a further microswitch 47. The transport motor starts to run and drives the two shafts 3 and 7 and thus the drive rollers 8, 9 and 15.
  • the transport motor now shifts the forms 11 through the interaction between the drive rollers 15 and the pressure rollers 20, 21 by a certain path, which is predetermined by a program and is calculated in such a way that the form 11, regardless of whether it is already on the printing pad 60 is printed or not, between the pressure rollers 19 and the drive rollers 8, 9.
  • the transport motor is stopped according to this specific path and the printing process is thus briefly interrupted.
  • the control motor 38 is switched on again.
  • the control motor 38 is switched off and the transport motor is switched on again via the cam plate 45, the form can be transported further, it now no longer being held between the front drive and pressure rollers 15, 20, 21, but only still between the rear drive and pressure rollers 8, 9 and 19.
  • the form can therefore be labeled on the printing pad 60 by means of the print head 61 all the way to its lower edge, since the front pressure and drive rollers are no longer required to hold the form .
  • the form 11 could be labeled from its top edge.
  • the return of the form begins from the position according to FIGS. 4A, 4B by reversing the drive direction of both the transport motor and the control motor, the control motor 38 driving the control shaft 44 against the direction of the arrow in FIGS. 2A to 4A.
  • the drive and pressure rollers 9, 8, 19 have a driving effect on the form 11.
  • the transport motor is stopped again and the control motor 38 is switched on, with the cam discs 37 and 43 first pressing the front pressure rollers 20, 21 into contact with the system the drive rollers 15 are brought and then the rear pressure rollers 19 are raised.

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

1. Apparatus for transporting single forms (11) and sets of forms from a feed shaft (18) to a print support (60) and back into the feed shaft (18), having drive means for the single forms (11) up- and downstream of the print support (60), having pressing means which can be pivoted into and out of the working position and by means of which the single forms (11) are pressed against drive means, and having aligning means (50) for the single forms (11) before inputting thereof, the front and rear drive and pressing means, constructed as a clamping apparatus, being arranged relative to the print support (60) such that the single forms (11) are not deflected between the latter, and whereby in addition both the aligning means (50) and the front and rear drive and pressing means can be moved in a controlled manner as a function of time relative to one another in and out of the working position, such that the front pressing means can be pivoted into the working position before the aligning means (50) can be moved out of the working position, and whereby further the front pressing means remain in the working position at least for the time until the single form (11) has arrived between the rear drive and pressing means, characterised in that on the one hand the drive means comprising rear drive rollers (8, 9) and the pressing means comprising pivotal rear pressing rollers (19) and on the other hand the drive means comprising front drive rollers (15) and the pressing means comprising pivotal front pressing rollers (20, 21) can each be controlled independently as a function of time, it being possible first to switch the pivotal rear pressing rollers (19) into the operating position and the pivotal front pressing rollers (20, 21) out of the operating position to input, after the front pressing rollers (20, 11) are in the operating position and the single form (11) is located between the rear drive rollers (8, 9) and the pivotal rear pressing rollers (19), the pivotal rear pressing rollers (19) can be switched on for the return transport of the single form (11) and, when the single form (11) has reached the pivotal front pressing rollers (20, 21), the pivotal front pressing rollers (20, 21) can be switched on, and in that when the single form (11) emerges from the pivotal front pressing rollers (20, 21) the aligning means (50) can be pivoted back into the operating position.

Description

Die Erfindung betrifft eine Vorrichtung zum Transport von Einzelformularen und Formularsätzen von einem Einführschacht zu einer Druckunterlage und zurück in den Einführschacht, mit Antriebsmitteln für die Einzelformulare vor und hinter der Druckunterlage, mit in und ausser Arbeitsstellung schwenkbaren Andrückmitteln, mit denen die Einzelformulare gegen Antriebsmittel gedrückt werden und mit Ausrichtmitteln für die Einzelformulare vor deren Einzug, wobei die als Klemmvorrichtung ausgebildeten vorderen und hinteren Antriebs- und Andrückmittel relativ zur Druckunterlage derart angeordnet sind, dass die Einzelformulare zwischen diesen nicht umgelenkt werden, wobei ausserdem sowohl die Ausrichtmittel als auch die vorderen und hinteren Antriebs- und Andrückmittel in gesteuerter zeitlicher Abhängigkeit zueinander in und ausser Arbeitsstellung bewegbar sind, derart, dass die vorderen Andrückmittel in die Arbeitsstellung schwenkbar sind, bevor die Ausrichtmittel ausser Arbeitsstellung bewegbar sind, wobei ferner die vorderen Andrückmittel zumindest in der Zeit in Arbeitsstellung verbleiben, bis das Einzelformular zwischen die hinteren Antriebs- und Andrückmittel gelangt ist.The invention relates to a device for transporting individual forms and sets of forms from an insertion shaft to a printing pad and back into the insertion shaft, with drive means for the individual forms in front of and behind the printing pad, with pressing means pivotable in and out of the working position, with which the individual forms are pressed against drive means and with alignment means for the individual forms before they are drawn in, the front and rear drive and pressing means, which are designed as a clamping device, being arranged relative to the printing pad in such a way that the individual forms are not deflected between them, and in addition both the alignment means and the front and rear drives and pressing means can be moved in and out of the working position in a controlled time dependency, such that the front pressing means can be pivoted into the working position before the alignment means can be moved out of the working position are, wherein the front pressure means remain in the working position at least in time until the single form between the rear drive and pressure means.

Zum Bedrucken von Einzelformularen bzw. Formularsätzen sind die verschiedensten Transportvorrichtungen bekannt, die das Formular relativ zu einer Druckstelle vorschieben, während des Bedruckens weitertransportieren und nach erfolgtem Bedrucken wieder in Rückwärtsrichtung ausschieben. In aller Regel werden dabei die Formulare sowohl vor als auch hinter der Druckstelle durch Antriebs- und Andrückrollen angetrieben um zu erreichen, dass das Formular an der Druckstelle auf jeden Fall gespannt gehalten wird. Die Antriebs- und Andrückmittel wirken dabei gleichzeitig als Klemmvorrichtung für die Formulare. Vor dem Einzugsvorgang werden Ausrichtmittel benötigt, die die Formulare an zwei senkrecht zueinander stehenden Kanten ausrichten, damit die Formulare in der richtigen Position festgeklemmt und zum Einzug freigegeben werden.A wide variety of transport devices are known for printing individual forms or sets of forms, which advance the form relative to a printing point, transport it further during printing and, after printing, push it out again in the reverse direction. As a rule, the forms are driven both in front of and behind the printing point by drive and pressure rollers in order to ensure that the form is in any case kept taut at the printing point. The drive and pressure means act simultaneously as a clamping device for the forms. Before the feed process, alignment means are required that align the forms on two mutually perpendicular edges so that the forms are clamped in the correct position and released for feed.

Wenn die Formulare in beiden Richtungen angetrieben werden, also in Vorlauf- und in Rücklaufrichtung und auch in beiden Bewegungsrichtungen bedruckt werden, dann muss sichergestellt sein, dass bei Verwendung von Formularsätzen nicht eine etwaige Verschiebung der oberen und unteren Formulare zueinander erfolgt, wie dies beispielsweise bei Schreibmaschinen häufig der Fall ist. Hier laufen die Formulare zwischen die in Anlage aneinander befindlichen Transport-und Andrückmittel herein, woraus sich bereits möglicherweise eine geringfügige Verschiebung der oberen und unteren Blätter der Formularsätze ergibt. Ganz besonders tritt dieser Effekt aber ein, wenn man auch rückwärts antreibt und wenn die Formularsätze auf ihrem Weg über einen grösseren Winkel umgelenkt werden. Dann können zwischen dem oberen und dem unteren Blatt des Formularsatzes erhebliche Verschiebungen auftreten. Diese Verschiebungen sind bei Schreibmaschinen noch tragbar, weil zumeist die unteren Kopien nur internen Zwecken dienen. Sollen dagegen alle Exemplare des Formularsatzes extern versandt werden, so ist ein unverschobenes Druckbild auch beim Bedrucken der Formulare einerseits in Vorwärtslaufrichtung und andererseits in Rückwärtslaufrichtung eine unabdingbare Forderung. Nicht unwesentlich ist es ferner, darauf hinzuweisen, dass die erfindungsgemässe Einrichtung so beschaffen sein soll, dass sie dünnere und dickere Einzelformulare sowohl als auch Formularsätze mit mehreren Lagen gleich gut verarbeitet.If the forms are driven in both directions, i.e. printed in the forward and reverse directions and also in both directions of movement, then it must be ensured that when using form sets there is no possible displacement of the upper and lower forms with respect to one another, as is the case, for example, with Typewriters are often the case. Here the forms run in between the transport and pressing means which are in contact with one another, which may already result in a slight shift in the upper and lower sheets of the form sets. This effect occurs particularly when you drive backwards and when the form sets are diverted over a larger angle on their way. Then there may be significant shifts between the top and bottom sheets of the form set. These shifts are still portable on typewriters because most of the lower copies only serve internal purposes. If, on the other hand, all copies of the set of forms are to be sent externally, a non-shifted print image is also an essential requirement when printing the forms on the one hand in the forward direction and on the other hand in the reverse direction. It is also not insignificant to point out that the device according to the invention should be such that it processes thinner and thicker individual forms as well as form sets with several layers equally well.

Die eingangs bezeichnete Vorrichtung zum Transport von Einzelformularen und Formularsätzen ist aus der US-A-4 030 726 bekannt. Abgesehen von einer dort verwirklichten Treibriemenanordnung können dort die Formulare nur in einer Transportrichtung bewegt werden. Dazu befinden sich die Antriebsmittel ausschliesslich vor der Druckstelle. Ausserdem fehlt es an Ausrichtmitteln vor dem Einzug des Formulars. Als Ausrichtmittel ist praktisch nur ein Anschlag vorgesehen. Es ist daher fraglich, ob der bekannte Anschlag das Formular überhaupt auszurichten vermag. Ferner sind die Andrückmittel nur in einem begrenzten Umfang steuerbar.The device for transporting individual forms and form sets referred to at the outset is known from US-A-4 030 726. Apart from a drive belt arrangement implemented there, the forms can only be moved in one transport direction. For this purpose, the drive means are located exclusively in front of the pressure point. There is also a lack of alignment tools before the form is moved in. Practically only one stop is provided as the alignment means. It is therefore questionable whether the known attack can actually align the form. Furthermore, the pressing means can only be controlled to a limited extent.

Es ist ferner eine Kartentransportvorrichtung aus der US-A-4 019 025 bekannt. Aus diesem Dokument ist es im einzelnen bekannt, Formulare vor- und zurücktransportierbar vorzusehen, die hinteren Andrückmittel wirksam zu schalten und die vorderen Andrückmittel unwiksam zu schalten, sobald eine gewisse Stellung des Formulares erreicht ist. Es ist daraus ebenfalls bekannt, beim Rücktransport des Formulares zunächst die hinteren Andrückmittel wirksam und frühestens, wenn das Formular die vorderen Andrückmittel erreicht hat, unwirksam zu schalten. Im übrigen arbeitet diese bekannte Lösung entsprechend der eingangs bezeichneten Gattung.A card transport device is also known from US-A-4 019 025. From this document it is known in detail to provide forms that can be transported back and forth, to effectively switch the rear pressing means and to switch the front pressing means unlikely as soon as a certain position of the form has been reached. It is also known from this to first switch the rear pressing means to be effective when the form is transported back, and to be ineffective at the earliest when the form has reached the front pressing means. Otherwise, this known solution works in accordance with the genus described at the beginning.

Bei derartigen Transportvorrichtungen stellt sich die Aufgabe, die Formulare so bedrucken zu können, dass die Kopf- und Fusszone möglichst kleingehalten werden. Mit anderen Worten ausgedrückt müssen der Druckkopf und die als Klemmvorrichtung für die Formulare wirkende Transportvorrichtung so beschaffen sein, dass der Druck in unmittelbarer Nähe des oberen und unteren Randes erfolgen kann, ohne dass sich dabei Verschiebungen des Formulares ergeben.With such transport devices, the task is to be able to print the forms in such a way that the head and foot zones are kept as small as possible. In other words, the print head and the transport device acting as a clamping device for the forms must be designed in such a way that printing can take place in the immediate vicinity of the upper and lower edges without the form being displaced.

Die gestellte Aufgabe wird erfindungsgemäss dadurch gelöst, dass einerseits die aus hinteren Antriebsrollen bestehenden Antriebsmittel und die aus verschwenkbaren hinteren Andrückrollen bestehenden Andrückmittel und andererseits die aus vorderen Antriebsrollen bestehenden Antriebsmittel und die aus verschwenkbaren vorderen Andrückrollen bestehenden Andrückmittel jeweils für sich getrennt in zeitlicher Abhängigkeit steuerbar sind, wobei zunächst die verschwenkbaren hinteren Andrückrollen in Betriebsstellung und die verschwenkbaren vorderen Andrückrollen ausser Betriebsstellung auf Einzug schaltbar sind, nachdem die vorderen Andrückrollen in Betriebsstellung sind und sich das Einzelformular zwischen den hinteren Antriebsrollen und den verschwenkbaren hinteren Andrückrollen befindet, für den Rücktransport des Einzelformulars die verschwenkbaren hinteren Andrückrollen einschaltbar sind und bei Erreichen der verschwenkbaren vorderen Andrückrollen durch das Einzelformular die verschwenkbaren vorderen Andrückrollen einschaltbar sind und dass bei Ausfahren des Einzelformulars aus den verschwenkbaren vorderen Andrückrollen die Ausrichtmittel wieder in die Betriebsstellung zurückschwenkbar sind.The object is achieved according to the invention in that on the one hand the drive means consisting of rear drive rollers and the pressure means consisting of pivotable rear pressure rollers and on the other hand the drive means consisting of front drive rollers and the pressure means consisting of pivotable front pressure rollers are each separately controllable as a function of time, whereby the pivotable rear pressure rollers in the operating position and the pivotable front pressure rollers can first be switched to the retraction position out of operation after the front pressure rollers are in the operating position and the single form is between the rear drive rollers and the pivotable rear pressure rollers, the pivotable rear pressure rollers can be switched on for the return of the single form and when the pivotable front pressure rollers are reached through the single form, the pivotable front pressure rollers can be switched on and that when the single form is extended from the swiveling front pressure rollers, the alignment means can be swiveled back into the operating position.

Dadurch, dass die vorderen und hinteren Antriebs- und Andrückmittel immer nur wechselweise wirksam werden und die Formulare also auch immer nur durch eine Reihe der Antriebs- und Andrückmittel gehalten werden, kann der Druck ohne Schwierigkeiten bis zum äussersten unteren und oberen Rand des Formulares erfolgen.The fact that the front and rear drive and pressure means only take effect alternately and the forms are therefore always held by only one row of the drive and pressure means means that printing can take place without difficulty up to the very bottom and top of the form.

Dadurch dass die Formulare bzw. Formularsätze nicht gegen die in Anlage aneinander befindlichen Andrück- und Antriebsmittel anlaufen, sondern zwischen diese eintreten, solange die Andrückmittel abgehoben sind, wird sichergestellt, dass beim Anlaufen des Formulares nicht durch das notwendige Verschieben der Andrückmittel relativ zu den Antriebsmitteln auch eine Verschiebung der Formulare untereinander bewirkt wird. Auf diese Art und Weise können auch etwaige Toleranzen in der Antriebsgeschwindigkeit sowohl der vorderen als auch der hinteren Antriebsmittel als auch Toleranzen in den Durchmessern derselben bestmöglich ausgeglichen werden, so dass für alle Blätter eines Formularsatzes ein absolut sauberer, stauchungsfreier Transport gewährleistet ist. Durch das Fehlen einer Umlenkung der Formulare zwischen den Antriebs- und Andrückmitteln und der Druckunterlage wird ein weiterer Faktor ausgeschaltet, der eine Verschiebung der Formulare bewirken kann.The fact that the forms or form sets do not run against the pressure and drive means that are in contact with one another, but instead enter between them as long as the pressure means are lifted off, ensures that when the form starts up, it is not necessary to move the pressure means relative to the drive means the forms are also shifted among themselves. In this way, any tolerances in the drive speed of both the front and rear drive means as well as tolerances in the diameters thereof can be compensated for as best as possible, so that absolutely clean, compression-free transport is guaranteed for all sheets of a form set. The absence of a deflection of the forms between the drive and pressure means and the printing pad eliminates another factor that can cause the forms to shift.

Bei einer Ausführungsform der Erfindung sind die vorderen und hinteren Antriebsrollen mittels eines Transportmotors antreibbar, während sowohl die vorderen und hinteren Andrückrollen als auch die Ausrichtmittel mittels eines Steuermotors steuerbar sind, wobei der Transportmotor und der Steuermotor wechselweise ein- und ausschaltbar sind. Durch den separaten Antrieb für das In- und Ausserwirklagebringen der Andrückmittel und der Ausrichtmittel einerseits und der Transportmittel andererseits ist ein fliegender Wechsel zwischen den vorderen und hinteren Andrückrollen nicht erforderlich, vielmehr wird in jedem Falle zunächst der Transport angehalten und dann das entsprechende Andrückmittel in und ausser Wirklage gebracht, was ohne merkbare zeitliche Verzögerung möglich ist.In one embodiment of the invention, the front and rear drive rollers can be driven by means of a transport motor, while both the front and rear pressure rollers and the alignment means can be controlled by means of a control motor, the transport motor and the control motor being able to be switched on and off alternately. Due to the separate drive for bringing the pressure means and the aligning means on the one hand and the transport means on the other hand, a flying change between the front and rear pressure rollers is not necessary; in any case, the transport is stopped first and then the corresponding pressure means in and out We brought what is possible without a noticeable time delay.

In Ausgestaltung der Erfindung ist vorgesehen, dass der Steuermotor mittels Kurvenscheiben, die den vorderen und hinteren Andrückrollen und den Ausrichtmitteln jeweils getrennt zugeordnet sind, diese in zeitlicher Staffelung in und ausser Betriebsstellung bringen. Die Verwendung eines derartigen Steuermotors mit Kurvenscheibensteuerung hat gegenüber der Einzelansteuerung der Andrückmittel und Ausrichtmittel über elektronische und elektromechanische Mittel den Vorteil, dass eine feste Programmierung gegeben ist, dass also zusätzlicher Programmierungsaufwand für die Steuerung dieser Aggregate nicht erforderlich ist.In an embodiment of the invention, it is provided that the control motor by means of cam disks, which are each separately assigned to the front and rear pressure rollers and the alignment means, bring them into and out of operating position in a staggered manner. The use of such a control motor with cam disk control has the advantage over the individual control of the pressing means and alignment means via electronic and electromechanical means that fixed programming is provided, so that additional programming effort is not required for controlling these units.

Vorteilhaft ist hierbei, dass eine weitere, mittels des Steuermotors angetriebene Kurvenscheibe für die Steuerung des Transportmotors vorgesehen ist.It is advantageous here that a further cam disk, which is driven by the control motor, is provided for controlling the transport motor.

Eine weitere Verbesserung der Erfindung besteht darin, dass zur Vermeidung von Stauchungen der Einzelformulare die Andrückrollen im Sinne eines Ziehens des Einzelformulares von der Druckunterlage weg, geschaltet sind.A further improvement of the invention consists in that, in order to avoid upsetting the individual forms, the pressure rollers are switched in the sense of pulling the individual form away from the printing base.

Wesentlich zur Vermeidung von Verschiebungen der einzelnen Blätter von Formularsätzen gegeneinander ist es auch, dass die vorderen bzw. die hinteren Antriebsrollen und die verschwenkbaren hinteren bzw. die vorderen Andrückrollen mit ihren Kraftübertragungsflächen mit der Druckunterlage in einer Ebene liegen.It is also essential to avoid displacements of the individual sheets of form sets against one another that the front or rear drive rollers and the pivotable rear or front pressure rollers with their force transmission surfaces lie in one plane with the printing pad.

Diese Anordnung hat den zusätzlichen Vorteil, dass sie es erlaubt, die ganze Transportvorrichtung in relativ flacher Bauweise zu erstellen, was für ihre Verwendung als Auftischgerät eine wesentliche Verbesserung darstellt.This arrangement has the additional advantage that it allows the entire transport device to be constructed in a relatively flat design, which represents a significant improvement for its use as a table-top device.

In den beiliegenden Zeichnungen ist eine Ausführungsform der Erfindung dargestellt, und zwar zeigt

  • Fig. 1 eine Draufsicht auf die erfindungsgemässe Einrichtung in zusammengedrängter Darstellung und teilweise geschnitten, während
  • Fig. 2A, 2B; 3A, 3B; 4A, 4B eine Seitenansicht der Einrichtung in verschiedenen Funktionsstellungen ist.
In the accompanying drawings, an embodiment of the invention is shown and shows
  • Fig. 1 is a plan view of the device according to the invention in a compressed representation and partially cut while
  • 2A, 2B; 3A, 3B; 4A, 4B is a side view of the device in various functional positions.

Zur Erläuterung sei zunächst erwähnt, dass die Fig.2A, 2B aneinandergelegt eine Seitenansicht der Steuerorgane und des Steuerungsmotors ergeben, wobei zur Verdeutlichung der Lesbarkeit unterschiedliche Strichformen für die verschiedenen Steuerungsgestänge verwendet werden. So wird beispielsweise das Steuerungsgestänge für die vorderen Andrückrollen in voll ausgezogenen Linien dargestellt, das Steuerungsgestänge für die hinteren Andrückrollen mit strichpunktierten Linien und die Steuerung für die Ausrichtmittel in gestrichelter Linienführung. Gleiches gilt auch für die Fig.3A, 3B und 4A, 4B, die lediglich andere Funktionsstellungen zeigen.For the sake of explanation, it should first be mentioned that FIGS. 2A, 2B placed side by side result in a side view of the control elements and the control motor, different line shapes being used for the different control linkages to clarify the legibility. For example, the control linkage for the front pressure rollers is shown in full lines, the control linkage for the rear pressure rollers with dash-dotted lines and the control for the alignment means in dashed lines. The same also applies to FIGS. 3A, 3B and 4A, 4B, which only show other functional positions.

Zunächst sei ein Überblick über die erfindungsgemässe Einrichtung anhand einer Beschreibung der Fig. 1 gegeben. Ein Transportmotor in Form eines Schrittmotors (nicht gezeichnet) wirkt über einen Riemen 1 und ein Riemenrad 2 auf eine Welle 3 ein. Über ein weiteres Riemenrad 4 und einen Riemen 5 wird die Antriebsbewegung des Transportmotors über ein Riemenrad 6 auf eine Welle 7 übertragen. Die Wellen 3 und 7 werden also von dem Transportmotor in beiden Drehrichtungen, also in Einzugs- und in Auswurfrichtung angetrieben. Die Wellen 3 und 7 sind als Antriebsmittel mit mit Gummi überzogenen hinteren Antriebsrollen 8 und 9 versehen, die von unten auf die zu transportierenden Formulare 11 bzw. Formularsätze einwirken. Die Antriebsrollen 8 und 9 dringen dabei durch Ausnehmungen 14 in unteren Abdeckplatten 13, 13'. Auf der Welle 7 sind den hinteren Antriebsrollen 8 und 9 entsprechende vordere Antriebsrolle 15 befestigt und diesen gegenüberliegende vordere Andrückrollen 20 und 21 vorgesehen. Die vorderen Antriebsrollen 15 werden durch die Abdeckplatte 13 abgedeckt und treten nur mit einem Bruchteil ihres Umfanges über diese Abdeckplatte hinaus. Die Abdeckplatte 13 bildet in ihrem vorderen Teil zusammen mit einem Führungsteil 17 einen Einführschacht 18, durch den die Formulare 11 bzw. Formularsätze eingeführt werden können. Jeder Antriebsrolle 8, 9 bzw. 15 ist eine verschwenkbare Andrückrolle 19,20,21 zugeordnet, die durch obere Abdeck-, Führungs- bzw. Halteteile 16, 16' hindurchtreten. Zwischen den Führungsteilen 16, 16' erkennt man die Druckunterlage 60 und in gestrichelter Darstellung den Druckkopf 61.First of all, an overview of the device according to the invention is given on the basis of a description of FIG. 1. A transport motor in the form of a stepping motor (not shown) acts on a shaft 3 via a belt 1 and a belt wheel 2. The drive movement of the transport motor is transmitted to a shaft 7 via a belt wheel 6 via a further belt wheel 4 and a belt 5. The shafts 3 and 7 are thus driven by the transport motor in both directions of rotation, that is to say in the feed and ejection directions. The shafts 3 and 7 are provided as drive means with rubber-coated rear drive rollers 8 and 9, which run from below the forms 11 or form sets to be transported act. The drive rollers 8 and 9 penetrate through recesses 14 in lower cover plates 13, 13 '. On the shaft 7, the front drive rollers 15 corresponding to the rear drive rollers 8 and 9 are fastened and the front pressure rollers 20 and 21 opposite them are provided. The front drive rollers 15 are covered by the cover plate 13 and only extend beyond this cover plate with a fraction of their circumference. In its front part, the cover plate 13 forms, together with a guide part 17, an insertion shaft 18 through which the forms 11 or form sets can be inserted. Each drive roller 8, 9 and 15 is assigned a pivotable pressure roller 19, 20, 21 which pass through the upper cover, guide and holding parts 16, 16 '. The printing pad 60 can be seen between the guide parts 16, 16 'and the printing head 61 in a broken line.

Die Andrückrollen 20, 21 sind die vorderen Andrückmittel, die jede auf einer Achse 22 drehbar gelagert sind und in zwei Haltearmen 23 und 24 getragen werden. Die Haltearme werden von einer gemeinsamen Achse 25 getragen, wobei die Achse 25 mit einem Vorsprung 26 versehen ist, der in einen Ausschnitt 28 in den Haltearmen eintritt, so dass die Haltearme 23 und 24 um ein geringes Mass verschwenkbar auf der Achse 25 gelagert sind. Eine Feder 27 beeinflusst die Haltearme und damit die Andrückrollen 20 und 21 im Gegenuhrzeigersinn. Solange jedoch die Achse 25 die in Fig. 2B gezeigte Stellung einnimmt, bleiben die Andrückrollen 20, 21 angehoben. Die Haltearme 23, 24 sind übrigens noch in dem Halteteil 16 gelagert und geführt. Mit der Achse 25 ist ein Hebel 30 (links in Fig. 1, rechts Fig.2B) verbunden, der über einen Bolzen 31 seinerseits mit einer Stange 32 zusammenwirkt. Die Stange 32 ist bei 33 (Fig.2A) an einem zweiarmigen Hebel 34 angelenkt, der auf einem Bolzen 35 schwenkbar gelagert ist. Mit einer Rolle 36 fühlt der Hebel 34 die Stellung der Kurve 37 ab. Durch einen Steuermotor 38 wird über eine Schnecke und ein Schnekkenrad 39 unter anderem auch die Kurve 37 in Fig. 2A im Gegenuhrzeigersinne angetrieben, sobald der Steuermotor erregt wird.The pressure rollers 20, 21 are the front pressure means, which are each rotatably mounted on an axis 22 and are carried in two holding arms 23 and 24. The holding arms are carried by a common axis 25, the axis 25 being provided with a projection 26 which enters a cutout 28 in the holding arms, so that the holding arms 23 and 24 are pivotably mounted on the axis 25 by a small amount. A spring 27 influences the holding arms and thus the pressure rollers 20 and 21 in the counterclockwise direction. However, as long as the axis 25 assumes the position shown in FIG. 2B, the pressure rollers 20, 21 remain raised. Incidentally, the holding arms 23, 24 are still supported and guided in the holding part 16. A lever 30 (on the left in FIG. 1, on the right in FIG. 2B) is connected to the axis 25 and in turn interacts with a rod 32 via a bolt 31. The rod 32 is articulated at 33 (FIG. 2A) to a two-armed lever 34 which is pivotably mounted on a pin 35. With a roller 36, the lever 34 senses the position of the curve 37. The control 37 is driven in a counterclockwise direction via a worm and a worm wheel 39, among other things, via a worm and a worm wheel 39 as soon as the control motor is excited.

Wie ein Vergleich der Fig. 2A und 3A erkennen lässt, steuert die Kurvenscheibe 37, angetrieben durch den Motor 38 die Andrückrollen 20, 21 über das Gestänge 34, 32, 30 und die Welle 25 aus der Stellung gemäss Fig.2A, 2B in die Stellung gemäss Fig. 3A, 3B, in der der Aufzeichnungsträger zwischen den Andrückrollen 20, 21 einerseits und den Antriebsrollen 15 festgeklemmt ist. Ein Transport geschieht allerdings erst, wenn der Transportmotor über die Riemen 1 und 5 auch die Wellen 7 und 3 schrittweise antreibt.As can be seen from a comparison of FIGS. 2A and 3A, the cam disk 37, driven by the motor 38, controls the pressure rollers 20, 21 via the linkage 34, 32, 30 and the shaft 25 from the position according to FIGS. 2A, 2B into the 3A, 3B, in which the recording medium is clamped between the pressure rollers 20, 21 on the one hand and the drive rollers 15. However, transport only takes place when the transport motor also drives shafts 7 and 3 step by step via belts 1 and 5.

Ähnlich verhält es sich mit der Steuerung der Andrückrolle 19 und der dazu korrespondierenden weiteren Andrückrollen, die die hinteren Andrückmittel darstellen. Diese sind auf einer Achse 40 gelagert. Die Achse 40 wird über einen Hebel re Kurvenscheibe 43 abfühlt, die ebenfalls von dem Motor 38 über die Steuerwelle 44 angetrieben wird. Ein Vergleich zwischen den Fig. 2A und 4A zeigt, dass hier die Andrückrolle 19 in die Anpressstellung zu der Antriebsrolle 9 gedrückt worden ist. Im übrigen sind die Andrückrollen 19 analog zu den Andrückrollen 20, 21 gelagert und auf der Achse 40 um ein geringes Mass beweglich gehalten.The situation is similar with the control of the pressure roller 19 and the corresponding further pressure rollers, which represent the rear pressure means. These are mounted on an axis 40. The axis 40 is sensed by a cam lever 43, which is also driven by the motor 38 via the control shaft 44. A comparison between FIGS. 2A and 4A shows that here the pressure roller 19 has been pressed into the pressure position relative to the drive roller 9. Otherwise, the pressure rollers 19 are mounted analogously to the pressure rollers 20, 21 and are kept movable on the axis 40 by a small amount.

Zusätzlich zu der Ansteuerung der Andrückrollen 19, 20, 21 über die beiden Achsen 40 und 25 sind noch die Ausrichtmittel 50 vorhanden, die in Form eines bügelförmigen Teiles 51 auf einer Achse 52 schwenkbar gelagert sind. Am vorderen Arm des Bügels 51 sind Anschläge 53 vorhanden, die durch Ausnehmungen in den Führungsblechen 13 und 16 so hindurchtreten können, dass der Eingabeschacht 18, wie die Fig. 2B zeigt, verschlossen ist. Hierzu steht das bügelförmige Teil 51 unter dem Einfluss einer Feder 54, die auf einen Stift 55 an dem Bügel 51 einwirkt. Andererseits wirkt auf den Stift 55 ein Hebel 56 ein, der bei 57 gelagert ist und mit seinem anderen Ende auf einen Stift 58 an einem Hebel 59 einwirkt. Der Hebel 59 ist um den Punkt 62 schwenkbar und tastet mit einer Rolle 63 eine weitere kleine Kurvenscheibe 64 ab, die auch auf der Steuerwelle 44 befestigt ist. Mit einem verlängerten Arm 59' wirkt der Hebel 59 noch auf einen Mikroschalter 65 ein. Ein Vergleich zwischen der Stellung gemäss Fig. 2A und B und 3A, 3B zeigt, dass die Ausrichtmittel 50 vor dem Beginn des Einzugsvorganges für das Formular 11 in Wirkposition sind, aber durch die Kurve 64 verschwenkt werden und dann ihre unwirksame Stellung gemäss Fig. 3B einnehmen. In einer Reihe mit den Anschlägen 53 ist noch ein schwenkbarer Schaltarm 67 angeordnet, der durch das Formular 11 beim Einschieben betätigt wird. Ein weiterer Schaltarm 68 (Fig. 1) ist so angeordnet, dass er durch die linke Seitenkante des Formulares 11 verschwenkt wird, wenn das Formular 11 korrekt eingeschoben ist. Wenn beide Schaltarme 67 und 68 zusammen betätigt sind, wird durch diese UND-Funktion der Einzugsvorgang freigegeben.In addition to the actuation of the pressure rollers 19, 20, 21 via the two axes 40 and 25, there are also the alignment means 50 which are pivotably mounted on an axis 52 in the form of a bow-shaped part 51. On the front arm of the bracket 51 there are stops 53 which can pass through recesses in the guide plates 13 and 16 in such a way that the input shaft 18 is closed, as shown in FIG. 2B. For this purpose, the bow-shaped part 51 is under the influence of a spring 54, which acts on a pin 55 on the bracket 51. On the other hand, a lever 56 acts on the pin 55, which is mounted at 57 and acts with its other end on a pin 58 on a lever 59. The lever 59 is pivotable about the point 62 and scans a further small cam 64 with a roller 63, which is also fastened on the control shaft 44. With an extended arm 59 ', the lever 59 still acts on a microswitch 65. A comparison between the position according to FIGS. 2A and B and 3A, 3B shows that the alignment means 50 are in the operative position for the form 11 before the start of the drawing-in process, but are pivoted by the curve 64 and then their ineffective position according to FIG. 3B take in. In a row with the stops 53 there is also a pivotable switching arm 67 which is actuated by the form 11 when it is inserted. Another switching arm 68 (FIG. 1) is arranged such that it is pivoted through the left side edge of the form 11 when the form 11 is correctly inserted. If both switching arms 67 and 68 are actuated together, the pull-in process is released by this AND function.

Es sei an dieser Stelle noch besonders darauf hingewiesen, dass die vorderen Antriebsmittel 15 und Andrückmittel 20, 21 die Druckunterlage 60 und die hinteren Antriebsmittel 8, 9 und Andrückmittel 19 in einer Ebene liegen. Hieraus ergibt es sich, dass zwischen den Berührungspunkten zwischen 20, 21 und 15, der Druckunterlage 60 und den Berührungspunkten zwischen 19 und 8, 9 keine Umlenkung der Formulare erfolgt. Weiter ergibt sich aus der Anordnung aller dieser Punkte in einer Ebene, dass eine relativ flache Bauweise der gesamten Anordnung möglich wird, die auch das Aufstellen eines derartigen Formulartransportgerätes auf einem Tisch ermöglicht, weil das Einschieben und auch das Auswerfen des Formulares nur wenig oberhalb der Tischplatte erfolgen kann, so dass sich hieraus auch eine bedienungsfreundliche Anordnung ergibt.At this point, it should be particularly pointed out that the front drive means 15 and pressure means 20, 21, the printing pad 60 and the rear drive means 8, 9 and pressure means 19 lie in one plane. It follows from this that there is no deflection of the forms between the points of contact between 20, 21 and 15, the printing pad 60 and the points of contact between 19 and 8, 9. Furthermore, the arrangement of all of these points in one plane means that a relatively flat construction of the entire arrangement is possible, which also enables such a form transport device to be set up on a table, because the insertion and ejection of the form is only a little above the table top can take place, so that this also results in a user-friendly arrangement.

Im folgenden sei nun der komplette Einzugshang beschrieben: Zu Beginn eines Einzugsvorganges nehmen die Teile die Stellung gemäss Fig. 2A und 2B ein. Beide Motoren, also der Transportmotor für die Antriebsmittel 8, 9 und 15 sowohl als auch der Steuermotor 38 sind ausser Betrieb. Das Formular bzw. der Formularsatz 11 wird eingeschoben und die beiden Schalter 67 und 68 werden durch die senkrecht zueinander stehenden Kanten der Formulare in einer UND-Funktion betätigt. Hierdurch wird indirekt über ein Programm der Steuermotor 38 eingeschaltet, die Steuerwelle 44 beginnt sich zu drehen. Dadurch wird zunächst die Rolle 36 an der Kurvenscheibe 37 abfallen und über das Gestänge 34, 32, 30 wird die Welle 25 die Andrückrollen 20, 21 gegen die Antriebsrollen 15 andrücken. Der Formularsatz ist damit in der ausgerichteten Stellung angepresst und wird zwischen den Rollen 20, 21 und 15 gehalten.The following is the complete move-in slope described: At the beginning of a drawing-in process, the parts assume the position according to FIGS. 2A and 2B. Both motors, that is to say the transport motor for the drive means 8, 9 and 15, and also the control motor 38 are out of operation. The form or the form set 11 is inserted and the two switches 67 and 68 are operated in an AND function by the mutually perpendicular edges of the forms. As a result, the control motor 38 is switched on indirectly via a program, the control shaft 44 begins to rotate. As a result, the roller 36 on the cam plate 37 will initially fall off and the shaft 25 will press the pressure rollers 20, 21 against the drive rollers 15 via the linkage 34, 32, 30. The form set is thus pressed in the aligned position and is held between the rollers 20, 21 and 15.

Der Steuermotor 38 läuft weiter und die Kurvenscheibe 64 verschwenkt über die Teile 63, 59, 56 und 51 die Ausrichtmittel 50 aus der Stellung gemäss Fig. 2B in die Stellung gemäss Fig. 3B. Damit ist der Weg für den Einzug der Formulare 11 frei. Gleichzeitig hat der Hebel 59 den Mikroschalter 65 betätigt und damit gemeldet, dass der Einzugsvorgang beginnen kann, weil die Ausrichtmittel 50 weggeschwenkt sind. Ausserdem wird über eine weitere Kurvenscheibe 45, einen Hebel 46 und einen weiteren Mikroschalter 47 der Transportmotor ein- und der Steuermotor 38 ausgeschaltet. Der Transportmotor beginnt zu laufen und treibt die beiden Wellen 3 und 7 und damit die Antriebsrollen 8, 9 und 15 an. Der Transportmotor verschiebt nunmehr die Formulare 11 durch das Zusammenwirken zwischen den Antriebsrollen 15 und den Andrückrollen 20, 21 um einen bestimmten, durch ein Programm vorgegebenen Weg, der so berechnet ist, dass er das Formular 11, unabhängig davon ob es auf der Druckunterlage 60 bereits bedruckt wird oder nicht, zwischen die Andrückrollen 19 und die Antriebsrollen 8, 9 einschiebt. Nach diesem bestimmten Weg wird der Transportmotor angehalten und damit auch der Druckvorgang kurzzeitig unterbrochen. Gleichzeitig wird der Steuermotor 38 wieder eingeschaltet.The control motor 38 continues to run and the cam disk 64 pivots the alignment means 50 from the position according to FIG. 2B into the position according to FIG. 3B via the parts 63, 59, 56 and 51. This clears the way for the entry of forms 11. At the same time, the lever 59 has actuated the microswitch 65 and has thus reported that the pulling-in process can begin because the alignment means 50 have been pivoted away. In addition, the transport motor is switched on and the control motor 38 is switched off via a further cam plate 45, a lever 46 and a further microswitch 47. The transport motor starts to run and drives the two shafts 3 and 7 and thus the drive rollers 8, 9 and 15. The transport motor now shifts the forms 11 through the interaction between the drive rollers 15 and the pressure rollers 20, 21 by a certain path, which is predetermined by a program and is calculated in such a way that the form 11, regardless of whether it is already on the printing pad 60 is printed or not, between the pressure rollers 19 and the drive rollers 8, 9. The transport motor is stopped according to this specific path and the printing process is thus briefly interrupted. At the same time, the control motor 38 is switched on again.

Durch die weitere Drehung der Steuerwelle 44 im Gegenuhrzeigersinn werden nun die Andrückrollen 19 dadurch abgesenkt, dass der Hebel 41 mit seiner Abfühlrolle 42 an der Kurvenscheibe 43 abfällt, so dass die Andrückrollen 19 abgesenkt werden. Das Formular 11 ist damit zwischen den hinteren Transportrollen 8, 9 und den Andrückrollen 19 festgeklemmt. Kurz danach wird über die Kurvenscheibe 37 und das Gestänge 34, 32, 30 die Achse 25 gedreht und damit die Andrückrollen 20 und 21 abgehoben. Diese Stellung zeigt nun Fig. 4a, 4b. Sobald diese Stellung erreicht ist, wird der Steuermotor 38 aus- und der Transportmotor über die Kurvenscheibe 45 wieder eingeschaltet, das Formular kann weitertransportiert werden, wobei es nun nicht mehr zwischen den vorderen Antriebs- und Andrückrollen 15, 20, 21 gehalten wird, sondern nur noch zwischen den hinteren Antriebs- und Andrückrollen 8, 9 und 19. Das Formular kann daher auf der Druckunterlage 60 mittels des Druckkopfes 61 ganz bis zu seinem unteren Rand beschriftet werden, da die vorderen Andrück- und Antriebsrollen zum Halten des Formulares nicht mehr benötigt werden. Andererseits, da am Anfang des Einzugsvorganges nur die Andrück- und Antriebsrollen 20, 21, 15 wirksam waren, konnte das Formular 11 von seinem obersten Rand an beschriftet werden.Due to the further rotation of the control shaft 44 in the counterclockwise direction, the pressure rollers 19 are now lowered in that the lever 41 with its sensing roller 42 falls on the cam plate 43, so that the pressure rollers 19 are lowered. The form 11 is thus clamped between the rear transport rollers 8, 9 and the pressure rollers 19. Shortly thereafter, the axis 25 is rotated via the cam plate 37 and the linkage 34, 32, 30 and thus the pressure rollers 20 and 21 are lifted off. This position is shown in Fig. 4a, 4b. As soon as this position is reached, the control motor 38 is switched off and the transport motor is switched on again via the cam plate 45, the form can be transported further, it now no longer being held between the front drive and pressure rollers 15, 20, 21, but only still between the rear drive and pressure rollers 8, 9 and 19. The form can therefore be labeled on the printing pad 60 by means of the print head 61 all the way to its lower edge, since the front pressure and drive rollers are no longer required to hold the form . On the other hand, since only the pressure and drive rollers 20, 21, 15 were effective at the beginning of the drawing-in process, the form 11 could be labeled from its top edge.

Der Rücklauf des Formulares beginnt aus der Stellung gemäss Fig. 4A, 4B heraus, indem die Antriebsrichtung sowohl des Transportmotors als auch des Steuermotors umgekehrt werden, wobei der Steuermotor 38 die Steuerwelle 44 entgegen der Pfeilrichtung in Fig. 2A bis 4A antreibt. Zunächst wirken die Antriebs- und Andrückrollen 9, 8, 19 antreibend auf das Formular 11 ein. Frühestens wenn das Formular zwischen die ausser Eingriff befindlichen vorderen Antriebs- und Andrückrollen 15, 20, 21 eingetreten ist, wird der Transportmotor wieder angehalten und der Steuermotor 38 eingeschaltet, wobei durch die Kurvenscheiben 37 und 43 zunächst die vorderen Andrückrollen 20, 21 zur Anlage an die Antriebsrollen 15 gebracht werden und danach die hinteren Andrückrollen 19 angehoben werden. Wenn jetzt der Transportmotor wieder eingeschaltet wird, erfolgt der Transport des Formulares über die Antriebsrollen 15 und Andrückrollen 20, 21, bis das Formular 11 die Antriebs- und Andrückrollen 15, 20, 21 verlassen hat und danach durch den Steuerungsmotor sowohl die Andrückrollen 20, 21 in die Stellung gemäss Fig. 2B als auch die Ausrichtmittel 50 in die Ausgangsstellung zurückgeschwenkt werden.The return of the form begins from the position according to FIGS. 4A, 4B by reversing the drive direction of both the transport motor and the control motor, the control motor 38 driving the control shaft 44 against the direction of the arrow in FIGS. 2A to 4A. First, the drive and pressure rollers 9, 8, 19 have a driving effect on the form 11. At the earliest when the form has entered between the disengaged front drive and pressure rollers 15, 20, 21, the transport motor is stopped again and the control motor 38 is switched on, with the cam discs 37 and 43 first pressing the front pressure rollers 20, 21 into contact with the system the drive rollers 15 are brought and then the rear pressure rollers 19 are raised. If the transport motor is now switched on again, the form is transported via the drive rollers 15 and pressure rollers 20, 21 until the form 11 has left the drive and pressure rollers 15, 20, 21 and then both the pressure rollers 20, 21 by the control motor 2B and the alignment means 50 are pivoted back into the starting position.

Claims (6)

1. Apparatus for transporting single forms (11) and sets of forms from a feed shaft (18) to a print support (60) and back into the feed shaft (18), having drive means for the single forms (11) up-and downstream of the print support (60), having pressing means which can be pivoted into and out of the working position and by means of which the single forms (11) are pressed against drive means, and having aligning means (50) for the single forms (11) before inputting thereof, the front and rear drive and pressing means, constructed as a clamping apparatus, being arranged relative to the print support (60) such that the single forms (11) are not deflected between the latter, and whereby in addition both the aligning means (50) and the front and rear drive and pressing means can be moved in a controlled manner as a function of time relative to one another in and out of the working position, such that the front pressing means can be pivoted into the working position before the aligning means (50) can be moved out of the working position, and whereby further the front pressing means remain in the working position at least for the time until the single form (11) has arrived between the rear drive and pressing means, characterised in that on the one hand the drive means comprising rear drive rollers (8, 9) and the pressing means comprising pivotal rear pressing rollers (19) and on the other hand the drive means comprising front drive rollers (15) and the pressing means comprising pivotal front pressing rollers (20, 21) can each be controlled independently as a function of time, it being possible first to switch the pivotal rear pressing rollers (19) into the operating position and the pivotal front pressing rollers (20, 21) out of the operating position to input, after the front pressing rollers (20, 11) are in the operating position and the single form (11) is located between the rear drive rollers (8, 9) and the pivotal rear pressing rollers (19), the pivotal rear pressing rollers (19) can be switched on for the return transport of the single form (11) and, when the single form (11) has reached the pivotal front pressing rollers (20, 21), the pivotal front pressing rollers (20, 21) can be switched on, and in that when the single form (11) emerges from the pivotal front pressing rollers (20, 21) the aligning means (50) can be pivoted back into the operating position.
2. Apparatus according to Claim 1, characterised in that the front and rear drive rollers (8, 9, 15) can be driven by means of a transport motor, while both the front and rear pressing rollers (19, 20, 21) as well as the aligning means (50) can be controlled by means of a control motor (38), it being possible to switch the transport motor and the control motor (38) on and off alternately.
3. Apparatus according to Claim 1, characterised in that the control motor (38), by means of cam discs (37, 43, 64) which are each separately associated with the front and rear pressing rollers (19, 20, 21) and the aligning means (50), brings these in and out of the operating position in a staggered sequence.
4. Apparatus according to Claims 1 and 3, characterised in that a further cam disc driven by means of the control motor (38) is provided for controlling the transport motor.
5. Apparatus according to Claim 1, characterised in that, to prevent jamming of the single forms (11), the pressing rollers (19, 20, 21) are switched away from the print support (60) in the direction of drawing of the single form (11).
6. Apparatus according to Claim 1, characterised in that the working surfaces of the front and rear drive rollers (15 and 8, 9) and the pivotal rear and the front pressing rollers (19 and 20, 21) lie in one plane with the print support (60).
EP82110005A 1981-11-07 1982-10-29 Feeding device for single or multiple sheets Expired EP0079008B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110005T ATE40664T1 (en) 1981-11-07 1982-10-29 DEVICE FOR TRANSPORTING INDIVIDUAL FORMS OR FORM SETS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3144388 1981-11-07
DE19813144388 DE3144388A1 (en) 1981-11-07 1981-11-07 DEVICE FOR TRANSPORTING SINGLE FORMS OR FORM SETTING

Publications (3)

Publication Number Publication Date
EP0079008A2 EP0079008A2 (en) 1983-05-18
EP0079008A3 EP0079008A3 (en) 1985-10-23
EP0079008B1 true EP0079008B1 (en) 1989-02-08

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ID=6145940

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Application Number Title Priority Date Filing Date
EP82110005A Expired EP0079008B1 (en) 1981-11-07 1982-10-29 Feeding device for single or multiple sheets

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EP (1) EP0079008B1 (en)
AT (1) ATE40664T1 (en)
DE (2) DE3144388A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208111C2 (en) * 1982-03-06 1984-05-30 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Modular printing device
JPS6392544A (en) * 1986-10-01 1988-04-23 Minolta Camera Co Ltd Media conveying device
US5083880A (en) * 1989-07-19 1992-01-28 Fujitsu Limited Printing media feeding apparatus for printers
FI88477C (en) * 1991-03-25 1993-05-25 Icl Personal Systems Oy Skrivare
FI88478C (en) * 1991-03-25 1993-05-25 Icl Personal Systems Oy Printer
DE4205777C2 (en) * 1992-02-21 1994-10-13 Mannesmann Ag Printer for processing recording media of various thicknesses in the form of single sheets and continuous webs
DE4414152A1 (en) * 1994-04-22 1995-10-26 F & O Elektronic Systems Gmbh Transporter for rigid sheets or cards at thermal printing station
DE19609659C1 (en) * 1996-03-12 1997-04-17 Siemens Nixdorf Inf Syst Arrangement for coupling print head in printing device with print material roll
DE19840997C2 (en) * 1998-09-08 2002-05-16 Wincor Nixdorf Gmbh & Co Kg Printer for printing single print media
DE10032855A1 (en) 2000-07-06 2002-01-17 Francotyp Postalia Gmbh Device for printing on a printing medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1379259A (en) * 1962-12-27 1964-11-20 Ibm Registration Card Processing Machine
DE2424144A1 (en) * 1974-05-17 1975-11-27 Anker Werke Ag Document conveyor and line spacer - aligns document free of tension in printing position following transportation
DE2426750C3 (en) * 1974-06-01 1980-04-03 Walther-Electronic Ag, 7921 Gerstetten Single form feed and transport device for data processing machines or the like
JPS578504B2 (en) * 1974-09-09 1982-02-17
IT1020820B (en) * 1974-09-18 1977-12-30 Olivetti & Co Spa DEVICE FOR AUTOMATIC FEEDING OF DOCUMENTS FOR ACCOUNTING MACHINES OR SIMILAR
US4030726A (en) * 1975-12-11 1977-06-21 Ncr Corporation Document feeding mechanism

Also Published As

Publication number Publication date
EP0079008A2 (en) 1983-05-18
DE3279443D1 (en) 1989-03-16
ATE40664T1 (en) 1989-02-15
EP0079008A3 (en) 1985-10-23
DE3144388A1 (en) 1983-05-19

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